Point clouds

Data has been treated through the following steps:

  • Split between sea bottom and vegetation using intensity
  • Split between water column noise and vegetation using intensity
  • Statistical outlier removal
  • Final ‘cleaning’

Ølberg South sea bottom points

Ølberg South vegetation points

Ølberg North sea bottom points

Ølberg North vegetation points

Rasters

From our point clouds, we create Digital Terrain Models (DTM) and Digital Surface Models (DSM) of our sea bottom and vegetation canopy, respectively

  • Using interpolation methods from ARC GIS Pro

Bathymetry (DTM)

Vegetation canopy depth (DSM)

Canopy height (DSM - DTM)

Ground truth v. LiDAR canopy height

Bathymetry (DTM) from Otter

LiDAR v. Otter bathymetry